2018-01-08 12:16 GMT+08:00 Icenowy Zheng <[email protected]>:
>
>
> 于 2018年1月8日 GMT+08:00 上午11:10:23, Jun Nie <[email protected]> 写到:
>>2018-01-07 23:02 GMT+08:00 Icenowy Zheng <[email protected]>:
>>> 在 2017年12月29日星期五 CST 下午5:35:51,Jun Nie 写道:
>>>> Hi Bernhard,
>>>>
>>>> Resend this mail with CCing mail list so that more people can see
>>this
>>>> issue and may have answer. Also correct register access code I use
>>as
>>>> I send wrong version code in last mail.
>>>>
>>>> I see sunxi-tool patch a3ce5f9f and you also mentioned that writing
>>value is
>>>> OK with register based method in google group. Do you have eFuse
>>writing
>>>> code that works? I can write OEM_PROGRAM and THERMAL_SENSOR with
>>below
>>>> code. But when I write ROTPK_HASH, eFuse is not changed.
>>>
>>> Could you try to check the value of ROTPK_HASH with the "read by
>>register"
>>> way?
>>>
>>
>>Below are result from kernel and fel tool. Offset 0x10 and 0x34 is
>>written for test.
>>BTW: I think Kernel driver need update for H3 read method because the
>>sid info is not aligned with fel tool read back value.
>>
>>FEL tool readback id:
>>02c00042:44004620:7867890c:1424064e
>>
>>
>># reg based read back info
>>$ hexdump -C /sys/devices/platform/soc/1c14000.sid/sunxi-sid0/nvmem
>>00000000  02 c0 00 42 44 00 46 20  78 67 89 0c 14 24 06 4e  |...BD.F
>>xg...$.N|
>>00000010  52 df f9 fb 00 00 00 00  00 00 00 00 00 00 00 00
>>|R...............|
>>00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>>|................|
>>00000030  00 00 00 00 5b ff fb df  00 00 00 00 00 00 00 00
>>|....[...........|
>>00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>
> P.S. Do you dare try to burn the Secure Boot bit?
>
> Maybe ROTPK_HASH is only writable after this.

I can try it when I have no other option.
>
>>|................|
>>*
>>00000100
>>
>>
>>#mem map based read back info
>
> Did you change the code? This value is wrong...

I did not change code for mem map based read. It is H2+ SoC actually.


>
>>$ hexdump -C /sys/devices/platform/soc/1c14000.sid/sunxi-sid0/nvmem
>>00000000  02 c0 46 20 44 00 89 0c  78 67 06 4e 14 24 f9 fb  |..F
>>D...xg.N.$..|
>>00000010  52 df f9 fb 00 00 00 00  00 00 00 00 00 00 00 00
>>|R...............|
>>00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>>|................|
>>00000030  00 00 00 00 5b ff fb df  00 00 00 00 00 00 00 00
>>|....[...........|
>>00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>>|................|
>>*
>>00000100

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